RECORD SPORT revealed yesterday how the are investigating claims that a Rugby Park office worker witnessed a colleague faking a player’s signature in order to have him registered for a game against Celtic.

That probe was launched yesterday with a thorough examination of all recent exchanges between the club and Hampden’s sixth floor.

It is understood, so far, nothing has been uncovered that would support the accusation, which relates to last month’s 3-0 loss to Celtic.

But now the star witness is set to be interviewed over the allegations, which – if proven – could result in Killie being docked points and possibly condemned to the relegation play-offs.

The SPFL will hire an independent expert to lead the questioning as they try to get to the bottom of this potentially explosive claim.

It is alleged they contacted Killie on the day of the game, Friday March 14, to alert the club to the fact the player’s signature was missing from a page of paperwork and that, unless it was submitted, he couldn’t be cleared to play that night. It’s then claimed the missing signature was added, but not by the player.

Killie boss Allan Johnston insists the first he learned about it was when he opened his copy of the Daily Record yesterday morning.

He said: “I did not know anything about it until I read the paper. As far as I’m aware everybody was registered for the Celtic game.

“I have not heard anything further and I’ve not spoken to the chairman. It is only rumours we are dealing in and I told the players we can’t have any distractions.”